Shailesh Chandrasekharan

Journal article Physical review letters · March 2022 Featured Publication We study a quantum phase transition from a massless to massive Dirac fermion phase in a new two-dimensional bipartite lattice model of electrons that is amenable to sign-free quantum Monte Carlo simulations. Importantly, interactions in our model are not o ... Full text Cite

Qubit Regularization and Qubit Embedding Algebras

Journal article Symmetry · February 1, 2022 Featured Publication Qubit regularization is a procedure to regularize the infinite dimensional local Hilbert space of bosonic fields to a finite dimensional one, which is a crucial step when trying to simulate lattice quantum field theories on a quantum computer. When the qub ... Full text Cite

Qubit regularization of asymptotic freedom

Journal article Physical Review Letters · December 3, 2020 Featured Publication We provide strong evidence that the asymptotically free (1+1)-dimensional non-linear O(3) sigma model can be regularized using a quantum lattice Hamiltonian, referred to as the "Heisenberg-comb", that acts on a Hilbert space with only two qubits per spatia ... Full text Link to item Cite

Conformal Dimensions in the Large Charge Sectors at the O(4) Wilson-Fisher Fixed Point.

Journal article Physical review letters · August 2019 Featured Publication We study the O(4) Wilson-Fisher fixed point in 2+1 dimensions in fixed large-charge sectors identified by products of two spin-j representations (j_{L},j_{R}). Using effective field theory we derive a formula for the conformal dimensions D(j_{L},j_{R}) of ... Full text Cite